Milwaukee Mayor Tom Barrett is among those whose information was exposed.

The information for some 6,000 city workers was compromised with the theft of a flash drive, but what really has the mayor angry is that the company waited more than three weeks to tell City Hall.

"The stolen car was reported missing immediately, but there was no report that there was information related to city employees that had been stolen," Barrett said.

Milwaukee-based Dynacare oversees the employee wellness program, and the flash drive was in a car stolen Oct. 22. The car has since been recovered, but the flash drive is still missing.

"Nah, it really shouldn't be floating around like that," city employee Barbara Neal said.

Neal just learned her name, Social Security number and birth date were on the flash drive.

"We have to keep a close eye on our credit now since our information is out and about and floating just God knows where. Yeah, we're going to have to keep a close eye on our credit report," Neal said.

"Well, I think every one of us feels the same way. We don't know what happened exactly. We don't know where this flash drive is, if it's in a dumpster somewhere or if it's being used. Our hope is it's in a dumpster somewhere," Barrett said.

Dynacare said it's not prepared to comment on the specifics of the theft.

Affected city employees should have received an email from Dynacare and the city of Milwaukee Monday explaining what to do in the event of suspected identity theft and one year of free identity monitoring.

A Mexican photojournalist who left the state he worked in because of threats was among five people found shot to death in a Mexico City apartment this weekend, officials and press freedom advocacy groups said.